Maithwaite is a station on Thomas' Branch Line. The exact location of the station is quite a mystery. It started out as a small station on Thomas' branch line. But after the fifth season, it became a station on the mainline. Sometimes, it is situated between Knapford and Tidmouth and at others it seems to be situated between Gordon's Hill and Kellsthorpe . Since the CGI switchover, it appears to be back on Thomas' Branch Line.

In the fifth season episode Baa!, Toby said it was his favourite station.